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Friday, 9 October

NEET UG 2025 · Zoology · Question 126

NEET 2025 Zoology, question 126

Question 126 of the NEET 2025 paper (code 45) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Bioreactors, was asked 3 times, in 2019, 2024 and 2025, across NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q126 · Zoology

Identify the part of a bio-reactor which is used as a foam braker from the given figure.

The figure, described in words

Stirred-tank bioreactor sketch with labels: B at the top drive/shaft, C at the top of the vessel near the lid, A at the upper impeller blades on the shaft, D at the bottom impeller/sparger region.

  1. 1A
  2. 2B
  3. 3D
  4. 4COfficial answer

Official answer: option 4 · NTA final answer key

Same idea

Bioreactors, in other papers

NEET asked this idea 3 times, in 2019, 2024 and 2025. The other 2 questions below.

  • 2024 Q165Which of the following statements is incorrect?One-line MCQ · Medium
  • 2019 Q113Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes ?One-line MCQ · Easy

Bioreactors: every question and how it was framed

The chapter

Biotechnology: Principles and Processes in ten years of NEET

46 questions from 2017–2026, asked in 10 of 10 papers, about 4.4 a paper. Cloning Vectors alone had 18.

Chapter analysisStudy this chapterPractise this chapter

Biotechnology: Principles and Processes: questions per paper

0365’171’183’196’206’215’225’235’246’254’26